85681040

素因数分解:

$2^4\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1103}}^1$

素因数の和:2087

約数の個数: 40

約数和(自身を含む): 199594368

約数和(自身を除く): 113913328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971, 1103, 1942, 2206, 3884, 4412, 4855, 5515, 7768, 8824, 9710, 11030, 15536, 17648, 19420, 22060, 38840, 44120, 77680, 88240, 1071013, 2142026, 4284052, 5355065, 8568104, 10710130, 17136208, 21420260, 42840520, 85681040]

約数ペア:

[(1, 85681040), (2, 42840520), (4, 21420260), (5, 17136208), (8, 10710130), (10, 8568104), (16, 5355065), (20, 4284052), (40, 2142026), (80, 1071013), (971, 88240), (1103, 77680), (1942, 44120), (2206, 38840), (3884, 22060), (4412, 19420), (4855, 17648), (5515, 15536), (7768, 11030), (8824, 9710)]